基于标准建模语言的分布式电子海图系统构件库

Research on distributed ECDIS component library based on UML

针对分布式电子海图系统开发过程中的系统与用户的交互问题,采用了标准建模语言的建模方法,并结合构件技术的原理,设计出分布式电子海图的构件库.首先根据构件与分布式系统的原理与特点,建立电子海图构件库的层次模型.其次对电子海图系统中的各种应用和功能进行提取,每一个功能与应用形成独立的子构件.最后根据构件库的层次模型将子构件进行详细的层次划分,形成一个完整的功能独立的电子海图构件库.该构件库在实际应用中,对于分布式网络环境下的各种功能需求能够表现出较强的稳定性和适应性,是电子海图系统在网络应用方面的核心部分.

This paper aims at the interactivity of Distributed ECDIS (Electronic Chart Display and Information System) and users. The Design of Distributed ECDIS component library adopts the UML modeling method and the principle of component technology. First according to theories of component and distributed system, the layer model of ECDIS component library is built. Then the functions of ECDIS are abstracted. Every function becomes a sub-component. At last the sub-components are divided into layers with the layer model of component library. The full ECDIS component library comes into being. It's the core of Web-based ECDIS.